Hey guys so I have been having this issue for awhile now but I thought I would be able to fix it by replacing the 4 wheel drive switch. My truck has been throwing itself into 4 wheel drive randomly. I'll be driving down the road and I'll look over and the 4 low/high will be lit but not on the dash? And sometimes when this happens I also lose almost all engine power and I can barley get up any speed until I pull over and put it back into 2 wheel. What is going on with the truck? It happens randomly but sometimes at the worst time. Oh and this problem isn't throwing a trouble code.